Heel cover turning machine



Oct. 28, 1947. F. K. PFEIFFER 'ET AL 2,429,894

HEEL covmn TURNING MACHINE I Filed Feb. 20, 1946 2 Sheets-Sheet '1 27/ INVENTORJ z- M M A Oct. 28, 1947.- F. K. PFElFFE-R ETAL 2,429,894

' I HEEL ,COVER TURNING MACHINE Filed Feb. 20, 1946 2 Sheets-Sheet 2' NVENTORS Patented Oct. 28,1947

HEEL COVER TURNING MACHINE Frank Kenneth Pfeiffer, Worcester, and Wilfred J. Grenier, Auburn, Mass, assignors to Frank H. Pfeiflr'er 00., Inc., Worcester, Mass, a corporation of Massachusetts Application February 20, 1946, Serial No. 649,082 11 Claims. (01. 12-1) This invention relates to heel cover turning machines and more particularly to machines for applying a heel cover to a heel by wiping a cover, already attached to a shoe at the insole, over the heel to the outsole area. I

Objects of the invention include the provision of a fixed support for a shoe including an insole, heel, and a depending heel cover attached to the shoe at the insole, a movable clamp for the shoe, a freely swinging wiper element conforming in general to the shape of the heel, a bracket supporting the swinging wiper, and means to impart a generally are shaped travel to the bracket in a direction to bring the wiper from beneath the heel to impinge and move the depending heel cover up and over the heel to cover the latter.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which.

Fig. 1 is a view in side elevation of a device embodying the invention and showing the shoe in place in broken lines;

Fig. 2 is an enlarged top plan View;

Fig. 3 is an enlarged view in side elevation, parts being omitted; and

Fig. 4 is an enlarged end View of the device as shown inFig. 2.

In Fig. 1, the character In indicates a bench, table, or the like having a plate I2 secured thereto by fasteners I4. A standard I6 rises from the table In in normally fixed but adjustable relation thereto, and a shoe supporting plate I8 is secured in horizontal relation thereon. A brace 20 may be used if desired. Depending from plate I2 there is a rod 22 secured in fixed relation, said rod having a bracket 24 thereon secured to a cylinder 26, the latter also depending from the plate I2.

Fig. 2 shows an extension on plate I2 providing for an offset arrangement of the cylinder 26, the latter slidably receiving a rod 30 having an offset neck 32 terminating in a presser plate 34 directly over the left hand of plate I8 as shown in Figs. 1 and 2. The offset provides space for the operator to easily and quickly place a shoe 36 in inverted relation on plate l8, the heel of the shoe being located under the plate 34*. It is to be noted that plate IB conforms generally to the shape of the insole of the shoe or shoe platform, the insole contacting this plate, and having a depending skirt 38, this skirt being the heel cover which is to be applied to the heel.

Rod 30 is lowered by means of a treadle 40 bearing on a pin 42 on an extension 44 of rod 30 and a bracket 46 helps guide the extension 44 in its vertical movement. Treadle 40 is pivoted at one end to a link 48 as at 50. Link 48 is adjustably secured to a link 52, the latter rising to the plate I2 and serving as an anchor for a spring54 normally yieldingly maintaining the clamp 34 and its supporting rod in raised position as in Fig. 1. Rods 48 and 52 are pivotable as a unit on pin 50. This construction provides that clamp 34- dc,- scends to clamp the heel of the shoe upon depression of the treadle, but when the heel is clamped, rod 30 can no longer descend and rods 48 and 52 must thereupon rise. Removal of pressure from the treadle raises the clamp 34 and. lowers the rods 46 and 52.

Rod 52 is bifurcated at its top to extend to both sides of plate I2, see character 56. This is best shown in Fig. 4. A U-shaped bracket 58 open at the top is supported on members 56 and moves therewith and with rod 52. Guides 60 limit the swinging movement of these parts. It is to be noted that spring 54 also serves to yieldingly maintain bracket 58 in its Fig. 1 position.

A cam 62 is secured to rise from plate I2, and this camcomprises a run 64 leading upwardly away from the bracket 58 and a run 66 extend: ing upwardly but reversely to run 64. An arm 68 fast to the bracket 58 is provided with a roller 69 kept to the cam by the spring. Obviously, as

rods 43, 52, and bracket 58 rise under influence of the treadle, the rods and bracket assume an upward movement on a vertical are or substantially so, from the position of Fig. 1 to that shown in Fig. 3.

Swinging freely in the bracket 58 there is an upright wiper element Ill mounted to swing on ends I2 of a support I4, the ends I2 being pivoted in the upstanding arms of the bracket. The wiper is concave at the right side as seen in Fig. 2 and convex at the opposite side, and is convergent upwardly along curved lines, see Fig. 4, and of course the wiper moves with bracket 56 on the are above described, but tilts or swings as occasion demands, relative to the bracket.

The wiper is located at its lowermost and most retracted position when there is no pressure on the treadle. The shoe being positioned on plate I8, the skirt or heel cover 38 depends in a position to the left of the wiper and as the latter rises on the aforementioned arc, the skirt or heel cover is impinged upon by the convex surface of the wiper and pivots therewith in a generally upward direction about the point of securement of the heel cover to the insole. At the same time the upper edge of the wiper folds the heel cover as the wiper leased, the wiper moves away from the heel back.

down the same are, to again come to rest as shown in Fig. 1, ready for the next shoe.

Having thus described our invention and the advantages thereof, we do not wish to be limited to the details herein disclosed,..otherwise than as set forth in the claims, but what we claim is:

1. Heel cover turning machine comprising a shoe support, a clamp therefor, a movable heel cover wiper bracket normally disposed below' the support, means to raise said bracket, a fixed cam to constrain the bracket .to a curved path in its upward movement, a heel cover wiper on the bracket, and meansproviding-for free swinging movement of the Wiperion the bracket.

2. The machine of claiml wherein said wiper is provided with a, concave surface facing the shoe support. I v

3. The machine of claim 1 wherein said wiper is provided with a convex surface facing away from the support. r I

I 4. Heel cover turning machine comprisin a hoe. support, a U-shaped movable bracket a wiper element dependently pivoted in the arms of the U for free swingingmovement therein, and a fixed cam moving the bracket and. wiper in an arcina plane generally normal to the shoe support, during movement of the bracket.

5 Heel c'over turning machine comprising a support, a shoe support thereon, a movable clamp to clamp a shoe to the shoe support, a movable member, a heel cover wiper onthe member, resilient means connected to the member and clamp tending to move the, member and the clamp away from the shoe support, and means to move the member toward the shoe support on an arc.

6. A heel cover turning machine comprising a shoe support, amovable member, means to move the latter upwardly,- an-upright concavo-convex wiper element dependently pivoted on the memher, the latter being normally disposed so that the wiperis located belowthe. support and close to tint slightly inwardly spaced from an edge of the support,- acam movingthe member outwardly and then inwardly relative to said edge so that- 4 said wiper element may engage a depending skirt on a shoe on the support and raise the skirt to wipe the same over a part of the shoe, the outward and inward movement occurring during movement of the member.

'7. The machine of claim 6 wherein said wiper element is freely swingable on the member to follow the contour ofthe shoe part to be covered.

8. Apparatus of the class described comprising a support, a pair of vertically movable rods thereon, .one .rodbeing swingable, a spring connecting the rods and tending to move the same in opposite directions, atreadle pivoted to the swingable rodanda bearing point for the treadle on the other. rod, a" clamp 'on the said other rod and a swinging h'eelwiper-on the swingable rod, a shoe support, said clamp cooperating therewith to clamp a shoe thereon, and means to constrain the'swingable rod to an arc-like motion as the latter rises under influence of the treadle.

9; The machine of claim8 wherein the wiperis provided with a concave surface facing theshoe supp rt. ,7 I i i 10. The machine ofclaim .8 wherein the wiper is provided with a concave surface facingthe shoe support and an opposite convexface.

11, Apparatus for turning heel covers comprising a support for the ,heel, a movable bracket,

meansto move the bracketrelative to the heel, a concavo-convex wiper element freely swingable on the bracket, the latter being normally disposed so, that the wiper is in aposition to contact a cover on theheel and means to move the bracket from the heel and in cycleback toward the heel during operation of saidfirst named means,'so that the wiper may turn the, cover oyerthe heel, the second named means comprisingafixed cam.

FRANK PEEIF'FER. WILFRED J. GRENIER.

I nnFERENcEs eiiiiin The following references are of record in the file of this patent:

UNiTEn STATES PATENTS N umber Name Date 385,376 Sargent l .Ju1y 3, 1888 1,474,349 Erickson l NOV, 20, 1923 1,733,264 Home. l Oct. 29, 1929 2,286,464 Christy L June 16, 1942 FOR IGN PATENTS Number Country Date 129,'2'7I Germany Mar. 24, 1902 

